Diff Operating Temperature

C3 Specific - Technical and Performance

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Diff Operating Temperature

Postby sirfixalot » Wed Apr 06, 2016 8:09 pm

I noticed while checking the car on way home from convention the diff centre had peeled all the paint off it in big pieces has anyone put an infrared heat gun on diff centre after driving to see what temperatrure it runs at.It was preped & painted after reco a few years ago

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Re: Diff Operating Temperature

Postby Bazzas77 » Thu Apr 07, 2016 9:53 am

I have always wondered how hot they get on a long trip , I have a gun but never remember to do it.

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Re: Diff Operating Temperature

Postby bfit » Wed Apr 27, 2016 10:17 am

Good question
I don't like to paint a diff housing, paint will hinder the radiation from the diff .
As for temperature , that is a function of friction, which a major variable .
Check you oil, what does it smell like, if it smells burnt it's been to hot.
I have seen differential run 140/150 deg. C
Prolonged use at 120degC will bring about an early failure of the diff.
90/100deg C in normal use. Track work will drive it up to the 150C range.
Your diff has only convection to cool it , in a production vette.
What paint did you use.?
How did you prep the surface before painting?

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